/Users/richardeakin/projects/libsms/trunk/src/hybridize.c File Reference

not yet functional... todo after original release More...

#include "sms.h"

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Defines
#define	ENV_THRESHOLD   .01
Functions
static int	InitializeHybrid (int sizeWave1, int sizeWave2, SMS_HybParams *pHybParams)
	initialize static arrays
void	freeBuffers ()
	free buffers
static void	CompExp (sfloat *pFEnv, float *pFSpec, float *pFWeight, int sizeSpec)
	compress / expand a given spectral envelope
static int	FilterMagEnv (sfloat *pFMagEnv, float *pFMagEnvFilt, int sizeMag)
static int	MultiplySpectra (sfloat *pFMagEnv, float *pFMagSpectrum, int sizeMag, sfloat *pFMagSpectrum2, int sizeMag2, SMS_HybParams *pHybParams)
void	HybridizeMag (sfloat *pIWaveform1, int sizeWave1, float *pIWaveform2, int sizeWave2, sfloat *pFWaveform, SMS_HybParams *pHybParams)
int	InterpolateArrays (sfloat *pFArray1, int sizeArray1, float *pFArray2, int sizeArray2, sfloat *pFArrayOut, int sizeArrayOut, sfloat fInterpFactor)
void	sms_hybridize (sfloat *pFWaveform1, int sizeWave1, float *pFWaveform2, int sizeWave2, sfloat *pFWaveform, SMS_HybParams *pHybParams)
	hybridize two waveforms
Variables
static sfloat *	pFWindow1 = NULL
static sfloat *	pFWindow2 = NULL
static int	sizeFft1
static int	sizeFft2
static int	sizeMag1
static int	sizeMag2
static int	sizeSmooth
static sfloat *	pFMagSpectrum1
static sfloat *	pFMagSpectrum2
static sfloat *	pFPhaseSpectrum1
static sfloat *	pFPhaseSpectrum2
static sfloat *	pFMagEnv
static sfloat *	pFEnvBuffer
static sfloat *	pFMagEnvFilt

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Detailed Description

not yet functional... todo after original release

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Define Documentation

#define ENV_THRESHOLD   .01

Referenced by MultiplySpectra().

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Function Documentation

static void CompExp	(	sfloat *	pFEnv,
		float *	pFSpec,
		float *	pFWeight,
		int	sizeSpec
	)			[static]

compress / expand a given spectral envelope

Parameters:

	pFEnv	hmm..
	pFSpec	hmmm...
	pFWeight	hmmmm...
	sizeSpec	size of the spectrum

References sfloat.

Referenced by MultiplySpectra().

static int FilterMagEnv	(	sfloat *	pFMagEnv,
		float *	pFMagEnvFilt,
		int	sizeMag
	)			[static]

References pFEnvBuffer, sfloat, sizeSmooth, and sms_filterArray().

Referenced by sms_hybridize().

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void freeBuffers

(

)

free buffers

References pFEnvBuffer, pFMagEnv, pFMagEnvFilt, pFMagSpectrum1, pFMagSpectrum2, pFPhaseSpectrum1, pFPhaseSpectrum2, pFWindow1, and pFWindow2.

void HybridizeMag	(	sfloat *	pIWaveform1,
		int	sizeWave1,
		float *	pIWaveform2,
		int	sizeWave2,
		sfloat *	pFWaveform,
		SMS_HybParams *	pHybParams
	)

References pFWindow1, and pFWindow2.

Referenced by sms_hybridize().

static int InitializeHybrid	(	int	sizeWave1,
		int	sizeWave2,
		SMS_HybParams *	pHybParams
	)			[static]

initialize static arrays

Parameters:

	sizeWave1	size of waveform 1
	sizeWave2	size of waveform 2
	pHybParams	parameters for hybridization

References LOG2, pFEnvBuffer, pFMagEnv, pFMagEnvFilt, pFMagSpectrum1, pFMagSpectrum2, pFPhaseSpectrum1, pFPhaseSpectrum2, pFWindow1, pFWindow2, sfloat, sizeFft1, sizeFft2, sizeMag1, sizeMag2, sizeSmooth, sms_getWindow(), and SMS_WIN_HAMMING.

Referenced by sms_hybridize().

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int InterpolateArrays	(	sfloat *	pFArray1,
		int	sizeArray1,
		float *	pFArray2,
		int	sizeArray2,
		sfloat *	pFArrayOut,
		int	sizeArrayOut,
		sfloat	fInterpFactor
	)

References sfloat, and sms_spectralApprox().

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static int MultiplySpectra	(	sfloat *	pFMagEnv,
		float *	pFMagSpectrum,
		int	sizeMag,
		sfloat *	pFMagSpectrum2,
		int	sizeMag2,
		SMS_HybParams *	pHybParams
	)			[static]

References CompExp(), ENV_THRESHOLD, MAX, sfloat, and sizeMag1.

Referenced by sms_hybridize().

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void sms_hybridize	(	sfloat *	pFWaveform1,
		int	sizeWave1,
		float *	pFWaveform2,
		int	sizeWave2,
		sfloat *	pFWaveform,
		SMS_HybParams *	pHybParams
	)

hybridize two waveforms

Parameters:

	pFWaveform1	excitation waveform
	sizeWave1	size of excitation waveform
	pFWaveform2	hybridization waveform
	sizeWave2	size of hybridization waveform
	pFWaveform	output waveform (hybridized)
	pHybParams	pointer to strucutre of control parameterscontrol parameters

References FilterMagEnv(), HybridizeMag(), InitializeHybrid(), MultiplySpectra(), pFMagEnv, pFMagEnvFilt, pFMagSpectrum1, pFMagSpectrum2, pFPhaseSpectrum1, pFPhaseSpectrum2, pFWindow1, pFWindow2, sizeFft1, sizeFft2, sizeMag1, sizeMag2, and sms_spectralApprox().

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Variable Documentation

sfloat * pFEnvBuffer [static]

Referenced by FilterMagEnv(), freeBuffers(), and InitializeHybrid().

sfloat * pFMagEnv [static]

Referenced by freeBuffers(), InitializeHybrid(), and sms_hybridize().

sfloat * pFMagEnvFilt [static]

Referenced by freeBuffers(), InitializeHybrid(), and sms_hybridize().

sfloat* pFMagSpectrum1 [static]

Referenced by freeBuffers(), InitializeHybrid(), and sms_hybridize().

sfloat * pFMagSpectrum2 [static]

Referenced by freeBuffers(), InitializeHybrid(), and sms_hybridize().

sfloat * pFPhaseSpectrum1 [static]

Referenced by freeBuffers(), InitializeHybrid(), and sms_hybridize().

sfloat * pFPhaseSpectrum2 [static]

Referenced by freeBuffers(), InitializeHybrid(), and sms_hybridize().

sfloat* pFWindow1 = NULL [static]

Referenced by freeBuffers(), HybridizeMag(), InitializeHybrid(), and sms_hybridize().

sfloat * pFWindow2 = NULL [static]

Referenced by freeBuffers(), HybridizeMag(), InitializeHybrid(), and sms_hybridize().

int sizeFft1 [static]

Referenced by InitializeHybrid(), and sms_hybridize().

int sizeFft2 [static]

Referenced by InitializeHybrid(), and sms_hybridize().

int sizeMag1 [static]

Referenced by InitializeHybrid(), MultiplySpectra(), and sms_hybridize().

int sizeMag2 [static]

Referenced by InitializeHybrid(), and sms_hybridize().

int sizeSmooth [static]

Referenced by FilterMagEnv(), and InitializeHybrid().